package top.healthylife.service.impl;/*
 *@Author GaoZeXi
 *@Created time 2020/4/17 10:52
 *@Description:
 * Step by Step  and Stand on,  You Are The Best Investment!!!
 */

import com.alibaba.dubbo.config.annotation.Service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import top.healthylife.constant.MessageConstant;
import top.healthylife.domain.Member;
import top.healthylife.domain.Order;
import top.healthylife.domain.OrderSetting;
import top.healthylife.entity.Result;
import top.healthylife.mapper.MemberMapper;
import top.healthylife.mapper.OrderMapper;
import top.healthylife.mapper.OrderSettingMapper;
import top.healthylife.service.OrderService;
import top.healthylife.utils.DateUtils;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderSettingMapper orderSettingMapper;

    @Autowired
    private MemberMapper memberMapper;

    @Autowired
    private OrderMapper orderMapper;
    /**
     * 1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行预约
     * 2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
     * 3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约则无法完成再次预约
     * 4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
     * 5、预约成功，更新当日的已预约人数
     * @param map
     * @return
     */
    @Override
    public Result order(Map map) throws Exception {
        //检查日期是否进行了预约设置
        String orderDate = (String) map.get("orderDate");
        Date date = DateUtils.parseString2Date(orderDate);
       OrderSetting orderSetting = orderSettingMapper.findByOrderDate(date);
       //根据日期查询预约表,查不到则未开启预约
       if(orderSetting==null){
           return  new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
       }

       //是否已经约满
        //可预约人数
        int number = orderSetting.getNumber();
        int reservations = orderSetting.getReservations();
        //预约已满
        if(reservations>=number){
            return new Result(false,MessageConstant.ORDER_FULL);
        }
        //判断当前用户是否是会员(在member表中),根据手机号
        String telephone = (String) map.get("telephone");
        Member member = memberMapper.findByTelephone(telephone);
        //防止重复预约
        if(member!=null){
            Integer memberId = member.getId();
            int setmealId =Integer.parseInt((String) map.get("setmealId"));
            Order order = new Order(memberId,date,null,null,setmealId);
            List<Order> orderList = orderMapper.findByCondition(order);
            if(orderList !=null && orderList.size()>=0){
                //已经预约完成,不能再次预约
                return new Result(false,MessageConstant.HAS_ORDERED);
            }
        }

        //可以预约 ,并设置预约人数+1
        orderSetting.setReservations(reservations+1);
        orderSettingMapper.updateReservationByOrderDate(orderSetting);


        if(member == null){
            //不是会员,自动注册会员
            member = new Member();
            member.setName(((String) map.get("name")));
            member.setPhoneNumber(telephone);
            member.setIdCard(((String) map.get("idCard")));
            member.setSex(((String) map.get("sex")));
            member.setRegTime(new Date());
            memberMapper.add(member);
        }

        //保存信息到预约表
        Order order = new Order(member.getId(),
                                date,
                                ((String) map.get("orderType")),
                                Order.ORDERSTATUS_NO,
                                Integer.parseInt(((String) map.get("setmealId"))));
        orderMapper.add(order);
        return new Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
    }

    @Override
    public Map findById(Integer id) throws Exception {
        Map map =orderMapper.findById4Detail(id);
        if(map!=null){
            //处理日期格式
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(orderDate));
        }
        return map;
    }
}
